77350120825 has 24 divisors (see below), whose sum is σ = 96690686400. Its totient is φ = 61380759360.

The previous prime is 77350120777. The next prime is 77350120843. The reversal of 77350120825 is 52802105377.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-77350120825 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1878306 + ... + 1919044.

It is an arithmetic number, because the mean of its divisors is an integer number (4028778600).

Almost surely, 2^77350120825 is an apocalyptic number.

It is an amenable number.

77350120825 is a deficient number, since it is larger than the sum of its proper divisors (19340565575).

77350120825 is a wasteful number, since it uses less digits than its factorization.

77350120825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41361 (or 41356 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 77350120825 in words is "seventy-seven billion, three hundred fifty million, one hundred twenty thousand, eight hundred twenty-five".